Rim



"L..H. PEHLMAN.

RIM.

APPLICATION FILED NOV. 1- I919- 1,388,196. Patented Aug. 23, 1921.

2 SHEETS-SHEET 1.

/I v wuaw fox L H. PERLMAN.

RIM.

APPLICATION FILL?) NOV. 1. 1919 1,388, 1 96 1 Patented Aug. 23, 1921 ZSHEETS-SHEET 2.

15 'ings by being collapsed or coiled and extend ed or uncoiled.

' uurreo STATE-s P'ATEINTV OFFICE.

incurs H. man,

OF NEW YORK, N. Y., ASSIGNOR TO GENERAL MOTORS CORPO- BATION, A.CORPORATION OF DELAWARE. I

Application filed November 1, 1919. Serial No. 334,919.

T all whom it mail cmwem."

Be it known that I,- LoUIs H. PnnLMAn,

' a citizen of the United. States, residing at\ demountable rims, andmore New York, in the county of New York and- State of New York, haveinvented certain new and useful Improvements in Rims; and- I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates toimprovements in articularly to the cross-cuttype designed or application to and removal from the shoes or cas-- Theobject in view 1a the provision of means for facilitating the collapsingand arrows.

uncoiling operations.

With this and further ob ects in view as will in part hereinafter becomeapparent and in part be stated, the invention comprises certain novelconstructions, combinations and arrangements .of parts as subse' quentlyspecified and claimed.

In the accompanying drawings,-

Figure 1 is .a side view of a fragment of a demountable rim embodyingthe features of the present invention. a

Fig. 2 is an inverted plan thereof.

Fig. '3 is a. view similar'to Fig. 1 with the parts shown in full linesin the collapsed or coiled position and in dotted lines in the course ofmoving to ori'rom such position.

Fig. 4: is a transverse section taken on the planes indicated by linei-4 of Fig. 1, and looking in the direction indicated by the Fig. 5 is aplan view of theoperating tool,

. a portion of the handle being broken away.

Fig. 6 is a perspective view of the same.

Fig. 7 is a detail side elevation of one of the locking bolts for theoperating tool.

,Referring to the drawings by numerals, 1' indicates a demountable rimcross-cut along the line indicated at 2, and having the radiallyinwardly-extending plates 3, 3 adapted to fit between driver lates onthe felly'band of an automobile w ieel for preventing separation oftheends of the rim under the stresses of the ordinary locking side wedges.The, rim 2 is of the conventional, commercial rolled sheet steel type,

the invention being indicated as applied to what is known as thestraight-side form of demountable rim, .but being obviously applicableto any form of dcmountable rim; The rim 1 is thus formed with a channelhaving" a base and side flanges rounded out to their respective freeedges. Adjacent, one 7 end of the rim 1, its flanges 'are provided withlaterally,- outstanding pivots 5, each consisting of a stud anchoredtothe respective flange. Each of the said studs is preferably anchoredby being riveted to the respective flange, but may be otherwiseconnected if preferred, and each stud is formed with an annular grooveserving as the hearing for an operating lever 6, there being anoperating lever '6 pivotally engaging each of the pivots 5 mach of thelevers 6 is journaled on its respective pivot 5 eachlever-extends-across the cross-c'ut-Q and pivotally engages a stud 7spaced a v at a point intermediate its ends, and one portion of consid-Y Marble distance from the cross-cut 2, the distance of the spacing ofthe stud 7 from the cross-cut 2 being slightly greater than onehah thedistance of overlamiing of the end portions of the rim when coiled. Eachof the levers 6 extends along the respective side flange of-rim 1beneath or radially within the curve of the outer portion of thatflange, so that the levers are not exposed to contact with extraneousobjects, such asthe curbing along streets or the like when-the wheels ofthe vehicle are caused to move sufficiently close to such objects as to"cause the exposed edge of one of the" flanges to contact Thus levers 6are protected;

therewith. Each lever 6 has a free end portion 6 extending beyond itspivot 5 and preferably ofl'set laterally as indicated at 6" to provide:space betweenitself and the adjacent face of the side flange for theaccommodation of an extension socket.

I An operating tool operatin with an enabling easy manipulation of thelevers 6, the said tool 8 consisting 'of an elongated handle adapted tobe disposed outside of the planes of the rim 1 and aving a lateralextension 8' from which extend the parallel sockets 9, 9 adapted to bedetachably fitted over the free end portion 6 of lever 6 as indicated indotted lines in Figs. 1 and 2.

. he parts being in the in Fig. 1, and the tool 8 being applied asindicated in dotted'lines thereon, t e' operator 8 is provided for 00-osition indicated be disastrous to the grasps the free end of the tool 8and swings the same in a, path transversely of the of rim ii for causingthe lovers 6 to more from the position indicated in F ig. 1 past theposition indicated in rlotted lines in Fig. 3 to the position indicatedin full lines therein. In approaching this lest-.nzmierl position, thatportion of each of the levers between the pivots 5 and 7 would strikethe terminal edges of the flanges of rim 1 if provision Were not made toaccominoclziiie such portions-of levers (3. To this end, each of theflanges oi riin l is formwl with e longitudinal, slot-lithe notch 10,openingzit that end of rim 1 to which pivots 5 are connectetl andexteni'ling along the respeo tive flange a distance sufficient for per--portions oi lever To this end, each of the the intermediate porti n ofiever 6. it should he understood, oicourse, that whe i the rim l iscoileol or collapsed to the posh tion seen in Fig. 3, the nesting of theowl portions is limit (l to that extent "to which the base of oneportion of the rim will enter the channel of the other and that limit isindicated in foil lines in Fig. 3 end the notches it) are .iimited intheir length proportionally.

When the rim has been brought to the position indicated in Fig. 3, it isin condition either to he applied to o removed from the tire shoe orraising with the greatest fin cility, and otter its application to ashoe the rim is restored. to its e tended condition by swinging heoperating tool for bringing the levers 6 to their initial position.

The sockets 9 are sniiiciently elongated. to prevent oceidentsl slippingthereof away from the ends 6 o f levers 6, but since the result of anaccidental slipping of the tool from the lovers (hiring operation mightoperator means are pro videcl to insure against such accidentaldielocation. Finch means may assume various forms, but preferablyconsists oi locking bolts carried by the sockets 9 and arranged todetziohzihly OXlQ'ZLgG the free portions of the levers 6. Each of soldbolts preferably consists of a, thi'eeclerfl shzinlr 11 having the usualwinged head 12 at one end :incl at the other end terminating in a,reduced cylindrical. extension Each of the Winged bolts 11 is threadedthrough a, portion of the respective socket 9 in position for having thesmooth, cylindrical reduced portion projectefl into and withcli'nivnfrom an apple priate slot 14 formed in the free end portion of therespective lever 6. down he bolts ll, after the been :ippiied to theleve the engagement between the levers and is operating tool 8 isrendered riniiil and from all possibility of accidental detachment. Uponcompletion of the inzini 'iiiletion. of the rim. the bolts 11. are To: icieiitiv to with: drew the extensions ironi slot l4 tinl the tool then.il engagement with too levers.

ii. In a 1 structure, the eonihiniition of u. crossciit oenioiinn ii iand, ii pair of levers one errzuiig eil em. '3 oi": each side flange oithe rim and M1 itver pivoted at an intermediate point its length i-iioadjacent one onions of the rim and pivoted to an int-exp te portion ofthe rim at one terminus oi the lever, 'encli lever having; s free porionextending be yond its iirstmentioneifl 5 portion being offsetlatezillv for receiving the socket of an operating tool.

2. In a rim. structure, the combination of Thus hyserewing s elaets 9have,

s to be withdrawn from yet and the free a cross-cut demonntnbl e rim anda pair of 4 levers, one arranged outside of each side flange of the rimand each lever pivoted at an intermediate point in its length to the rimadjacent one terminus of the rim and pivoted to an intermediate portionoi the rim at one terminus of the lever, eech ienge of the .d with itslot-like notch for accommodating the resoective lever While the rimportions are moving to and from :i-iirl are in their collapse-(lposition.

LOUIS H. PERLMAN Witnesses:

E. M. Fmii nmo, EDGAR M. llrronm.

of {t lever. in posi-

